Precompile GLSL shadestyle code

OPENRNDR How to?
1

Is it sensible to compile a shadestyle written in GLSL once, so that it is reused every frame, and if so, how do I do that? Also if there is a way to use a separate file for better organization and so my IDE can do syntax highlighting, that would be useful.

2

ShadeStyleManager attempts to cache and prevent shader compilations. It uses two mechanisms for caching:

First it looks for a shader by looking up ShadeStyle by its identity. If a shader is found it uses that. If a shader is not found it looks for a shader by hashing the active ShadeStyle. If no shader is found it generates it.

In practice you can reduce a bit of hashing overhead by creating shade styles inside program {}

program {
   val someShadeStyle = shadeStyle { 
       fragmentTransforms = ...
   }
  extend {
      drawer.shadeStyle = someShadeStyle
      ... draw things here ... 
  }
}
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